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ASTM A210/ ASME SA210 Gr. A1 Seamless Medium-Carbon Steel tube for Boiler (Minimum Wall)
ASTM A210 / ASME SA210 Grade A1 Seamless Medium-Carbon Steel Boiler Tube (Minimum Wall) is a seamless steel tube specifically designed for high-temperature and high-pressure applications in boilers, superheaters, and heat exchangers. It is made of medium-carbon steel, offering good strength, weldability, and resistance to oxidation. The "Minimum Wall" designation ensures the tube meets the thinnest permissible wall thickness as per the standard, optimizing heat transfer efficiency while maintaining structural integrity under operational stress.
1.Chemical & Mechanical Properties
| ASTM A210 Gr. A1 Chemical Composition (%) |
| C | Si | Mn | P | S | Mo | Cr | V |
| ≤0.27% | ≥0.10% | ≤0.93% | ≤0.035% | ≤0.035% | / | / | / |
Mechanical Properties
| Property | Standard Value |
| Tensile Strength | ≥415 MPa |
| Yield Strength | ≥255 MPa |
| Elongation | ≥30% |
| Hardness (Brinell) | ≤79 HRB |
2. Key Adventages
- High Strength & Durability
ensile strength ≥415 MPa, yield strength ≥255 MPa, ensuring long-term stability under high pressure.
Excellent creep resistance, suitable for high-temperature boiler and superheater systems.
No weld defects, suitable for high pressure conditions, very low risk of leakage
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Optimized Heat Transfer Efficiency
Long-term service temperature up to 450°C, excellent oxidation resistance and creep resistance.
Minimum wall thickness design reduces thermal resistance and improves heat transfer efficiency.
Seamless structure prevents thermal stress concentration at welds, extending service life.
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Superior Workability & Weldability
Good cold bending and cutting performance for easy field installation and fabrication.
Excellent weldability, compatible with various welding methods, preheating and post-weld heat treatment recommended.
3. Key Applications
- Power Plant Boiler Systems
Main steam piping, reheater tubing
High-temperature and high-pressure boiler tube assemblies
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Industrial Boiler Equipment
Industrial steam generation units
Process heating system piping
Shell-and-tube heat exchangers
Waste heat recovery systems
Refinery heater tubing
Chemical process piping systems
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ASTM A210 Gr. A1 Seamless Medium-Carbon Steel tube for Boiler (Minimum Wall) Images
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